Of late, the organisation I am attached to, has implemented SAP ISU (SAP GUI 7.10) Easy Access software, This is mainly used in billing & cash collection (electricity) like day to day activities. Being the organization a public sector, it has many offices that are being operated by this software. I know that the version is too old & there is hardly any support for this version. We find some T_Codes to perform different tasks. But the software provides us many extensive details (such as terms, activities, reports etc). Is there any procedure to know the software in details (such as manuals, help books etc)?